OPT_DIRECT_THREADED_CODE   59 vm_core.h      #undef OPT_DIRECT_THREADED_CODE
OPT_DIRECT_THREADED_CODE   67 vm_core.h      #undef OPT_DIRECT_THREADED_CODE
OPT_DIRECT_THREADED_CODE   77 vm_core.h      #undef OPT_DIRECT_THREADED_CODE
OPT_DIRECT_THREADED_CODE   33 vm_opts.h      #define OPT_DIRECT_THREADED_CODE     1